The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion and stretching, but provides effortless gear shiftsThis drop handlebar cable set is required to connect the shifters to the included battery indicator junction box controllerUltegra Di2 also requires EW-SD50 cables from the battery indicator junction box to the rear mech, front mech, battery and the bottom bracket junctionDi2 cables cannot be cut to fitReliable and secure water resistant connectorsNot Flightdeck compatibleView all Shimano Di2 NETQUOTEVAR:LINK
